Transmission shaft for automobile

By designing the transmission shaft structure of the oil storage tank, suction component, and electric telescopic rod, the problems of lubricating oil waste and poor shock absorption were solved, achieving efficient lubricating oil recovery and multiple lubrication of the transmission shaft, thus enhancing torsional resistance and shock absorption.

CN223840142UActive Publication Date: 2026-01-27JIANGSU CHANGTE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520680189.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-01-27
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Traditional lubricating oil has a small contact area and short contact time in the drive shaft, which easily contaminates the installation environment and causes waste. At the same time, the vibration and impact energy of the drive shaft during operation is concentrated, resulting in poor shock absorption.

Method used

A drive shaft structure including an oil storage tank, a nozzle, a suction component, an electric telescopic rod, and a filter screen was designed. The electric telescopic rod draws in lubricating oil and sprays it onto the shock-absorbing sleeve. The hollow structure and reinforcing ribs disperse the impact energy, and the rubber shock-absorbing sleeve absorbs the vibration.

Benefits of technology

It achieves efficient recovery and multiple lubrication of lubricating oil, reduces waste, filters impurities, and improves the torsional resistance and shock absorption of the drive shaft.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223840142U_ABST
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Abstract

The utility model relates to a transmission shaft for an automobile, which belongs to the technical field of automobile shafts and comprises a mounting seat, two mounting racks are fixedly connected to one side of the mounting seat, a damping sleeve is slidably connected between the two mounting racks, and a transmission shaft body is arranged in the damping sleeve. The lubricating oil recovery device has the beneficial effects that the piston block can be driven to slide in the suction piece through the arrangement of the electric telescopic rod, so that lubricating oil in the recovery box can be sucked into the suction piece by virtue of the input pipe, and the lubricating oil in the suction piece can be squeezed into the oil storage tank by virtue of the output pipe along with the pushing of the piston block; and in the process, a worker can repeatedly control the electric telescopic rod to complete the suction action so as to achieve the purpose of lubricating the surface of the damping sleeve for multiple times, the dripping lubricating oil is recycled through the recycling box, and waste of the lubricating oil can be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of automotive axle technology, and in particular to a drive shaft for automobiles. Background Technology

[0002] With the increasing popularity of automobiles, the frequent occurrence of traffic accidents seriously affects the personal safety of drivers and passengers. The drive shaft is a very important component of a car. It is a shaft that can transmit power and is also a high-speed rotating body with few supports. Therefore, its dynamic balance is crucial.

[0003] Currently, when automotive axles are in operation, lubricating oil needs to be injected into the transmission parts for lubrication to reduce transmission friction and extend the service life of the equipment. However, traditional lubricating oil, after entering the transmission shaft, will drip downwards with gravity, resulting in a small contact area and short contact time between the lubricating oil and the transmission shaft. On the one hand, the lubricating oil contains impurities, which will contaminate the installation environment of the automotive axle; on the other hand, it causes a waste of lubricating oil. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a drive shaft for automobiles.

[0005] The technical solution of this utility model is as follows: a drive shaft for automobiles includes a mounting base. Two mounting brackets are fixedly connected to one side of the mounting base. A shock-absorbing sleeve is slidably connected between the two mounting brackets. The drive shaft body is located inside the shock-absorbing sleeve. An oil reservoir is located at the top of the mounting bracket. Nozzles are fixedly connected at equal intervals to the bottom of the oil reservoir. A recovery box is fixedly connected to the bottom of one side of the mounting base. A suction component is fixedly connected to the rear side of the mounting base. A piston block is slidably connected inside the suction component. An output pipe is fixedly connected to the top of the suction component. The end of the input pipe away from the suction component extends into the interior of the recovery box.

[0006] By adopting the above technical solution, the piston rod of the electric telescopic rod can be contracted to drive the piston block to slide inside the suction component, thereby drawing the lubricating oil in the recovery box into the suction component through the input pipe. As the piston block advances, the lubricating oil in the suction component can be squeezed into the oil storage tank through the output pipe, and finally sprayed into the shock-absorbing sleeve by the nozzle.

[0007] In a preferred embodiment, the interior of the drive shaft body is a hollow structure, and multiple reinforcing ribs are fixedly connected to the inner wall of the drive shaft body. The multiple reinforcing ribs are evenly distributed along the inner wall of the shaft tube. The inner wall of the shock-absorbing sleeve is in contact with the drive shaft body, and the outer side of the shock-absorbing sleeve is provided with wavy protrusions.

[0008] By adopting the above technical solution and using wave-shaped protrusions, the impact energy can be dispersed at multiple points instead of being concentrated at one point. This way of dispersing impact energy can effectively reduce the direct impact on objects, thereby achieving the effect of shock absorption.

[0009] In a preferred embodiment, the end of the output pipe away from the suction element extends into the interior of the oil storage tank, and a filter screen is fixedly connected to the top of the recovery box.

[0010] By adopting the above technical solution and setting up a filter screen, the purpose of filtering impurities in lubricating oil can be achieved.

[0011] In a preferred embodiment, both sides of the drive shaft body are fixedly connected with connecting flanges, one end of the drive shaft body is provided with a gearbox, and the other end of the drive shaft body is provided with a drive axle.

[0012] By adopting the above technical solution and using a gearbox and drive axle, power transmission can be achieved.

[0013] In a preferred embodiment, the drive axle and the drive shaft body are connected by a connecting flange, and the gearbox and the drive shaft body are connected by a connecting flange.

[0014] By adopting the above technical solution, the torque will be transmitted to the drive shaft body through the gearbox, and the drive shaft body will transmit the torque to the drive axle to drive the wheels to rotate.

[0015] In a preferred embodiment, each of the mounting brackets has a mounting plate fixedly connected to its top, and the oil storage tank is fixedly connected between two mounting plates.

[0016] By adopting the above technical solution and using the mounting plate, an installation site can be provided for the oil storage tank.

[0017] In a preferred embodiment, an electric telescopic rod is fixedly installed on one side of the suction component, the piston rod of the electric telescopic rod extends into the interior of the suction component and is fixedly connected to the piston block, and a one-way valve is fixedly installed inside both the output pipe and the input pipe.

[0018] By adopting the above technical solution, the piston block can be moved by extending and retracting the piston rod of the electric telescopic rod.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] 1. In this utility model, the piston rod of the electric telescopic rod retracts, causing the piston block to slide within the suction component. This allows the lubricating oil in the recovery tank to be drawn into the suction component via the input pipe. As the piston block advances, the lubricating oil in the suction component is squeezed into the storage tank via the output pipe, and finally sprayed into the shock-absorbing sleeve by the nozzle. During this process, the operator can repeatedly control the electric telescopic rod to complete the suction action, thereby achieving multiple lubrication of the surface of the shock-absorbing sleeve. The recovery tank is used to collect the dripping lubricating oil, reducing waste. At the same time, the use of a filter screen can filter impurities in the dripping lubricating oil, reducing the impact on the use of the shock-absorbing sleeve.

[0021] 2. In this utility model, the hollow structure of the transmission shaft body reduces the weight of the transmission shaft body, and the shock-absorbing sleeve is made of rubber material, which can be used to absorb vibration. Furthermore, the setting of reinforcing ribs can improve the torsional performance of the transmission shaft body. The use of wave-shaped protrusions can disperse the impact energy at multiple points instead of concentrating it at one point. This way of dispersing impact energy can effectively reduce the direct impact on the object, thereby achieving the effect of shock absorption. Attached Figure Description

[0022] Figure 1 This utility model provides an overall perspective view of an automotive drive shaft;

[0023] Figure 2 This utility model provides a schematic diagram of the drive shaft body structure for an automotive drive shaft;

[0024] Figure 3 This utility model provides a rear view of a drive shaft for automobiles;

[0025] Figure 4 This utility model provides an internal schematic diagram of the suction component of an automotive drive shaft.

[0026] Legend: 1. Mounting base; 2. Oil reservoir; 3. Nozzle; 4. Mounting bracket; 5. Recovery box; 6. Filter screen; 7. Connecting flange; 8. Drive axle; 9. Reinforcing rib; 10. Shock-absorbing sleeve; 11. Drive shaft body; 12. Suction component; 13. Output pipe; 14. Input pipe; 15. Electric telescopic rod; 16. Piston block. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Reference Figure 1-4 A driveshaft for automobiles includes a mounting base 1. Two mounting brackets 4 are fixedly connected to one side of the mounting base 1. A shock-absorbing sleeve 10 is slidably connected between the two mounting brackets 4. A driveshaft body 11 is housed inside the shock-absorbing sleeve 10. An oil reservoir 2 is located at the top of the mounting brackets 4. Nozzles 3 are fixedly connected at equal intervals to the bottom of the oil reservoir 2. A recovery box 5 is fixedly connected to the bottom of one side of the mounting base 1. A suction component 12 is fixedly connected to the rear side of the mounting base 1. A piston block 16 is slidably connected inside the suction component 12. An output pipe 13 is fixedly connected to the top of the suction component 12. An input pipe 14 is fixedly connected to the bottom of the suction component 12. The end of the input pipe 14 away from the suction component 12 extends into the interior of the recovery box 5. When the engine outputs power, torque is transmitted to the driveshaft body 11 through the gearbox. Lubricating oil can be loaded into the recovery tank 5. As the piston rod of the electric telescopic rod 15 retracts, it can drive the piston block 16 to slide within the suction member 12. The lubricating oil in the recovery tank 5 can then be drawn into the suction member 12 through the input pipe 14. As the piston block 16 advances, the lubricating oil in the suction member 12 can be squeezed into the oil storage tank 2 through the output pipe 13. Finally, it is sprayed into the shock-absorbing sleeve 10 by the nozzle 3. During this process, the operator can repeatedly control the electric telescopic rod 15 to complete the suction action, so as to achieve multiple lubrication of the surface of the shock-absorbing sleeve 10. The recovery tank 5 can be used to recover the dripping lubricating oil, which can reduce the waste of lubricating oil. At the same time, the use of the filter screen 6 can filter the impurities in the dripping lubricating oil, so as to reduce the impact on the use of the drive shaft body 11.

[0029] Specifically, the drive shaft body 11 has a hollow internal structure, and multiple reinforcing ribs 9 are fixedly connected to the inner wall of the drive shaft body 11. The hollow structure of the drive shaft body 11 reduces its weight. The shock-absorbing sleeve 10 is made of rubber and can absorb vibrations. The multiple reinforcing ribs 9 are evenly distributed along the inner wall of the shaft tube, and the inner wall of the shock-absorbing sleeve 10 fits snugly against the drive shaft body 11. The reinforcing ribs 9 improve the torsional resistance of the drive shaft body 11. The outer side of the shock-absorbing sleeve 10 has wavy protrusions. The use of these wavy protrusions... This allows the impact energy to be dispersed at multiple points rather than concentrated at one point. This method of dispersing impact energy can effectively reduce the direct impact on objects, thereby achieving the effect of shock absorption. The end of the output pipe 13 away from the suction component 12 extends into the interior of the oil storage tank 2. The top of the recovery box 5 is fixedly connected to a filter screen 6 to achieve the purpose of filtering impurities in the lubricating oil. Both sides of the drive shaft body 11 are fixedly connected to connecting flanges 7. One end of the drive shaft body 11 is equipped with a gearbox, and the other end of the drive shaft body 11 is equipped with a drive axle 8 to realize the transmission of power.

[0030] Specifically, the drive axle 8 is connected to the drive shaft body 11 via a connecting flange 7, and the gearbox is connected to the drive shaft body 11 via a connecting flange 7. Mounting plates are fixedly connected to the top of the mounting bracket 4. The mounting plates provide an installation location for the oil storage tank 2. The oil storage tank 2 is fixedly connected between the two mounting plates. An electric telescopic rod 15 is fixedly installed on one side of the suction component 12. The piston rod of the electric telescopic rod 15 extends into the interior of the suction component 12 and is fixedly connected to the piston block 16. One-way valves are fixedly installed inside the output pipe 13 and the input pipe 14. The piston block 16 can be moved by extending and retracting the piston rod of the electric telescopic rod 15.

[0031] Working principle: First, when the engine outputs power, the torque is transmitted to the drive shaft body 11 through the gearbox. The drive shaft body 11 then transmits the torque to the drive axle 8, driving the wheels to rotate. During this process, the hollow structure of the drive shaft body 11 reduces its weight, and the shock-absorbing sleeve 10, made of rubber, absorbs vibration. The reinforcing rib 9 improves the torsional resistance of the drive shaft body 11, ensuring the stability of power transmission. Simultaneously, the operator can fill the return tank 5 with lubricating oil and control the electric telescopic rod 15 via an external controller. As the piston rod of the electric telescopic rod 15 retracts, it drives the piston block 16 to... The suction unit 12 slides inside, allowing the lubricating oil in the recovery tank 5 to be drawn into the suction unit 12 via the input pipe 14. As the piston block 16 advances, the lubricating oil in the suction unit 12 can be squeezed into the oil storage tank 2 via the output pipe 13, and finally sprayed into the shock-absorbing sleeve 10 by the nozzle 3. During this process, the operator can repeatedly control the electric telescopic rod 15 to complete the suction action, so as to achieve multiple lubrication of the surface of the shock-absorbing sleeve 10. The recovery tank 5 is used to recover the dripping lubricating oil, which can reduce the waste of lubricating oil. At the same time, the use of the filter screen 6 can filter the impurities in the dripping lubricating oil, so as to reduce the impact on the use of the drive shaft body 11.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drive shaft for automobiles, comprising a mounting base (1), characterized in that: Two mounting brackets (4) are fixedly connected to one side of the mounting base (1). A shock-absorbing sleeve (10) is slidably connected between the two mounting brackets (4). A drive shaft body (11) is provided inside the shock-absorbing sleeve (10). An oil storage tank (2) is provided at the top of the mounting bracket (4). A nozzle (3) is fixedly connected at equal intervals at the bottom of the oil storage tank (2). A recovery box (5) is fixedly connected to the bottom of one side of the mounting base (1). A suction component (12) is fixedly connected to the rear side of the mounting base (1). A piston block (16) is slidably connected inside the suction component (12). An output pipe (13) is fixedly connected to the top of the suction component (12). An input pipe (14) is fixedly connected to the bottom of the suction component (12). The end of the input pipe (14) away from the suction component (12) extends into the interior of the recovery box (5).

2. The automotive drive shaft according to claim 1, characterized in that: The interior of the drive shaft body (11) is a hollow structure. Multiple reinforcing ribs (9) are fixedly connected to the inner wall of the drive shaft body (11). The multiple reinforcing ribs (9) are evenly distributed along the inner wall of the shaft tube. The inner wall of the shock-absorbing sleeve (10) is in contact with the drive shaft body (11). The outer side of the shock-absorbing sleeve (10) is provided with wavy protrusions.

3. The automotive drive shaft according to claim 1, characterized in that: The output pipe (13) extends from the end away from the suction member (12) into the interior of the oil storage tank (2), and a filter screen (6) is fixedly connected to the top of the recovery box (5).

4. The automotive drive shaft according to claim 1, characterized in that: Both sides of the drive shaft body (11) are fixedly connected with connecting flanges (7), one end of the drive shaft body (11) is provided with a gearbox, and the other end of the drive shaft body (11) is provided with a drive axle (8).

5. A drive shaft for automobiles according to claim 4, characterized in that: The drive axle (8) is connected to the drive shaft body (11) via a connecting flange (7), and the gearbox is connected to the drive shaft body (11) via a connecting flange (7).

6. The automotive drive shaft according to claim 1, characterized in that: The top of each mounting bracket (4) is fixedly connected to a mounting plate, and the oil storage tank (2) is fixedly connected between two mounting plates.

7. The automotive drive shaft according to claim 1, characterized in that: An electric telescopic rod (15) is fixedly installed on one side of the suction component (12). The piston rod of the electric telescopic rod (15) extends into the interior of the suction component (12) and is fixedly connected to the piston block (16). One-way valves are fixedly installed inside both the output pipe (13) and the input pipe (14).